Collaborative Research

Temperature, Water Guns, and Cadavers
by -- January 28th, 2013

Hello again from the Kilo Moana!  Yesterday, we successfully made it to 41.5 degrees North, where we finally sampled some of the so far elusive 10 degree Celsius water.  As discussed by Catherine in the previous post, the low temperature prohibits Prochlorococcus from growing.  This temperature is therefore a critical point for us to sample in order to completely analyze the full range of Prochlorococcus’ physiological tolerance.

 

Maria and Tristan sampling the cold water

 

After sampling the 10 degree water, we promptly turned around and headed back south for the final time.  We will continue south until we hit 18 degree Celsius water.  This is another critical temperature for Prochlorococcus, where the two major clades of Prochlorococcus coexist.  As such, we will follow the 18 degree isotherm for several days before making our final push towards Hawaii.

 

Our last sunrise on the starboard side of the ship

 

Before we get back to Hawaii, however, we are keeping our minds active out here on the Kilo.  Today, Dr. Jennifer DeBruyn gave a lecture entitled, “Cadaver Decomposition and Microbial Community Research at the University of Tennessee Body Farm” as a part of our POWOW2/Kilo Moana Science Club Seminar Series.  Dr. DeBruyn’s lecture was very fascinating!

 

Dr. DeBruyn presenting her lecture

 

We also had some time to have a little bit of fun today.  The Tennessee lab received some water guns as a “ship gift.”  This led to some good-natured lab wars, but I think Marty, of the Tennessee lab, got the worst of it.

 

Water guns led to great hilarity

 

Marty was a bit soaked at the end

 

Until next time!

Alyse

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